His forehead pricked coldly. In his case was a sheaf of envelopes addressed to selected Russian statesmen, physicists, and editors of scientific journals — but supposing there was a system in Britain whereby all mail bound for Russia was checked? There were ways to read a letter without opening the envelope. Hutchman eased his foot off the accelerator as he struggled to work out the implications of the new idea. If such a system really were in operation one effect would be that the great manhunt would get under way several days earlier than he had allowed for. This in itself would not necessarily be disastrous, but a much more serious consequence could be that no Russian envelopes would reach their intended destinations. The whole essence of his scheme was that all nuclear powers should be informed of the November 10 deadline. If it were used unilaterally Hutchman’s antiweapon would automatically become a weapon. Even as it was, by choosing a deadline so close in the future, he had already handicapped the greater powers who would have to work all out to break up their stocks of warheads in time.

As he coasted uncertainly along the road Hutchman was surprised to find the image of a woman’s face hovering behind his eyes. It was a smooth, dusky face with a pouting lower lip accented by chalky-pink lipstick. An intelligent amoral face. That of… Andrea Knight! With the identification came a rush of other information about the woman — she was a biologist with whom Hutchman had been briefly acquainted at university. Lately he had glimpsed her several times in the refectory at the Jeavons Institute, during his rare coffee breaks from work on the machine and — a hard knot of excitement formed in his stomach — he had read something about her in the J.I. Newsletter. She was going to Moscow to take part in a DNA seminar!

Hutchman fought to recall the exact date of her departure, but all he could be certain of was that it was imminent. Perhaps it had already passed, but if she — as a member of an accredited scientific mission — could be persuaded to take an envelope with her there was no doubt that it would get safely through the customs and security barriers. And if he gave her one of the envelopes intended for a journal it should be fairly easy to work out a reasonable story to satisfy her curiosity. If she had already left he would have to think of something else, but it seemed worth his while to find out what the situation was.

The next town ahead was Aldershot. Hutchman accelerated again and within a few minutes was speeding past the neat rows of army housing which spread out for miles on both sides of the road. He stopped at a telephone kiosk near the town and looked up the number of Roger Dufay, the Westfield press officer, who was also a free-lance science journalist and a regular contributor to the J.I. Newsletter. The phone rang a longish time but finally was answered by Dufay.

“Hello, Roger!” Hutchman tried to sound hearty and unconcerned. “Sorry to trouble you at home, but I can’t think of anybody else who could answer this one.”

“That’s all right, old boy.” Dufay was friendly but cautious. “What’s your problem?”

“I’m trying to contact a friend of mine who’s going off to Moscow for the DNA seminar, and I wonder if I’m too late.”

“Mmm. I’m not sure. Who is it you want?”

Hutchman hesitated. He could invent a name but Dufay was one of those frighteningly knowledgeable men who could be capable of reciting the names of the entire British party. “Ah . Andrea Knight.”

“Oho! You’re a crafty devil, Hutch. It’s like that, is it?”

“No, Roger.” Not you, too, Hutchman thought wearily. “Besides, do you think I’d admit anything to you?”

“No need to, old boy. They don’t call our little Andrea the Jeavons bicycle for nothing. You crafty devil.”

“Listen, Roger, have you got a note of when the British party leaves? I’m in a bit of a hurry.”

“I’ll bet you are. Hold on a moment.” There was a pause during which Hutchman bent his knees to bring his face level with the kiosk’s mirror. His cheeks looked thinner, the line of his jaw standing out clearly, and he had forgotten to shave — for the first time in years. “Hello, Hutch. They’re flying out from Gatwick tomorrow afternoon. So if you want to get in before the commissars you’d better pop round to her place tonight and…”

“Thanks, Roger.” Hutchman set the phone down and went in search of the Aldershot general post office. Arriving at it he looked through all the directories covering the Camburn and Crymchurch areas and found the entry he wanted: “Knight, Andrea, 11 Moore’s Road, Camburn… Camburn 3436.” He copied it onto a piece of paper and, suddenly apprehensive, dialed the number.

“Andrea Knight here.” She had answered so quickly, even before the phone began to ring properly, that Hutchman was startled.

“Hello, Miss Knight.” He sought the right words. “I don’t know if you would remember me. This is Lucas Hutchman. We were at…”

“Lucas Hutchman!” Her voice was surprised, but with undertones of pleasure. “Of course I remember… I’ve seen you lately at Jeavons, but you didn’t speak to me.”

“I wasn’t sure if you would know who I was.”

“Well, your not even saying hello to me wouldn’t help my memory, would it?”

“I guess not.” Hutchman felt his face grow warm and he realized with mild astonishment that he and this virtual stranger were, within seconds, making contact on a sexual level. “I always seem to miss my chances.”

“Really? Then why have you rung me? Or shouldn’t I be so bold?”

“I was wondering…” Hutchman swallowed. “I know this is very presumptuous, but I was wondering if you would do me a small favor.”

“I hope I can, but I should warn you that I’m leaving for Moscow tomorrow and won’t be back for three weeks.”

“It’s in connection with your Moscow trip that I’m ringing. I have an article on microwave radiation that I want to get to the editor of Soviet Science rather quickly. I could send it through the ordinary mail, but it’s quite a fearsome-looking thing — you know how maths papers are — and there’s so much censorship and red tape that it might take months before it got through, so I wondered…” Hutchman paused to regain his breath.

“Do you want me to deliver it by hand? A sort of transSiberian Pony Express?” Andrea laughed easily, and Hutchman felt he had cleared a hurdle.

“No need for anything like that,” he assured her gratefully. “It’ll be in an addressed envelope. If you could simply shove it in a postbox or whatever they have over there.”

“I’ll be happy to do that for you, Lucas, but there’s a problem.”

“A problem?” Hutchman tried not to sound too concerned.

“Yes. I haven’t got the envelope to deliver. How do I get it?”

“That shouldn’t be difficult. May I bring it round to you today?”

“Well, I’m still in the throes of packing, but I’ll be free this evening if that’s convenient.”

Hutchman’s heart began to pound steadily. “Yes, that’s fine. Where shall I… ?”

“Where do you usually meet women?”

“I…” He checked himself from saying that he did not usually meet women. You asked for this, Vicky. “How about the Camburn Arms? Perhaps we could have a meal?”

“I’ll look forward to that, Lucas. Eight o’clock?”

“See you at eight o’clock.” He set the phone down and stepped out of the confines of the kiosk into the noonday bustle feeling bewildered, as if he had swallowed several strong gins on an empty stomach. He gazed blankly at the unfamiliar scene for a second before realizing that he was in Aldershot at the beginning of a grand tour of the southern counties. That plan would have to be modified for a start. As he walked back to the car Hutchman decided that posting the first envelopes in a single batch in one town could be less informative to an investigator than an elaborate itinerary. There was something faintly disturbing about the fact that his modified plan for the journey, which had not been considered until a moment ago, seemed better than one he had thought about for days; but there was no denying that it would be wise to ensure a smooth trip for at least one envelope to Moscow.